Two-dimensional code security image and its application in design of food traceability system

Two-dimensional code technology has been applied to all aspects of production and life, such as auto parts production line tracking, product traceability, medical emergencies, e-commerce, media and tourism. However, these two-dimensional code application generally concentrated in record numbers, letters and words, but in practice many applications need to record the image, such as the admission of students who require a printed picture as a security basis. Establish an efficient food traceability systems available, one aspect of the need to analyze the food production and processing sectors in the more complex and require the use of efficient and reliable two-dimensional code identification and data collection related equipment; on the other hand to analyze the correlation algorithm for large data storage and traceability information model.